Holden have again laid down the gauntlet to Supercars leader Scott McLaughlin, with veteran Garth Tander emerging fastest in second practice for this weekend's Gold Coast 600.
After Holden's Jamie Whincup dominated the opening session, three-time Bathurst champion Tander topped the time sheets for the first practice session dedicated only to co-drivers on the tourist strip, clocking an impressive one minute, 10.66 second lap for the 30-minute session.
Former series champion Tander, partnering title hope Shane van Gisbergen, finished practice ahead of Ford star Chaz Mostert's teammate James Moffat.
Runaway Supercars series leader McLaughlin's co-driver Alex Premat completed the top three.